Stylish Black Brushed Aluminium
The Ultimate Case solution to your Cooling Problems!
Comes with THREE Enormous 230mm Fans + 120mm fan
And Supports up to NINE Large Fans
Plenty of options for Water Cooling
with Pre-Drilled Holes & Mounts
High Performance cooling for the latest Systems
Ideal for Powerful High-End Systems
Plenty of Space for Cable Routing + well placed Routing Holes
Outstanding Quality & Craftsmanship
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Slide-out M/B tray
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Nifty Design Features
Brilliantly Easy & Quick System Building
thanks to a
Toolless Installation system
Sliding Drive Tray System with Great Vibration Dampening
Plus Sliding Motherboard Tray System
Dynamic layout & Superior customisation
Top & Bottom Mounting Points
for Single or Even DUAL Power Supplies,
Loads of Fan/Water Cooling Options Available
Easy Accessibility front ports for
Four USB, Firewire, eSATA, Audio (HD, AC'97) +Mic
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Show off your PC in this AMAZING Case!
Stylish and unique with Vast Amounts of Space
Consructed for Strength and Durability
with All the features you could possibly want...
Even supporting E-ATX Motherboards as well as ATX/mATX

ATCS 840 constitutes a classic all-aluminum design that builds on the legacy of the original ATCS design.The aluminum construction not only allows for a lighter weight but complements the thermal designseamlessly with three 230mm fans, dedicated air duct for graphics card cooling and HDD cooling module for superb cooling. Extra attention to make sure this elegantly design chassis is easy to install and maintain, which includes: slide-out motherboard tray along with easy CPU cooler-remove slot, tool-free HDD casing, patented finger pressing 5.25" drive to dust filter. Lastly, it gives users the freedom to choose any components they desire, as it supports the latest standards such as E-ATX and dual PSUs.

Features
Independent GPU cooling.
High-end graphic cards temperatures can be reduced by 3~5C
Ergonomic Design.
Dual PSUs System.
PSU could be mounted on top or bottom for flexible installation or dual PSU configuration
Advanced Cooling System.
:: Front fan: 23030 mm x 1
:: Top fan: 23030mm x 2
:: Rear fan : 12025 mm x 1
:: Bottom fan :120mm (optional)
:: Air duct with 120mm fan
:: HDD fan: 120mm x 2 (optional)
:: Support high end CPU cooler
(the cooler should be lower than 200mm)
:: Support the radiator with three 120mm fans

Ergonomic Design
Slide-out M/B tray
Easy CPU cooler changing
Top I/O panel
Tool free 5.25” system
Tool free HDD system
Washable air filter
Cable Management system for better cable routing and neatness
Manufacturers Specification
| Available Color |
Black / Silver |
| Dimension (W / H / D) |
(W) 243 x (H) 580 x (D) 630 mm
(W) 9.57 x (H) 22.83 x (D) 24.80 inch |
| Weight |
Net Weight: 13.25 kg (29.21 lb);
Gross Weight: 15.75 (34.72 lb) |
| Motherboards |
Micro-ATX / ATX / E-ATX |
| 5.25" Drive Bay |
6 Exposed (without the use of exposed 3.5" drive bay) |
| 3.5" Drive Bay |
6 Hidden
1 Exposed (converted from one 5.25" drive bay) |
| I/O Panel |
USB x 4,
IEEE 1394a x 1,
eSATA x 1,
Mic x 1,
Audio x 1 |
| Cooling System |
Front : 230 x 30mm standard fan x 1, 700 RPM, 19 dBA (included)
Top: 230 x 30mm standard fan x 2,700 RPM, 19 dBA (included)
(can be swapped for three 120mm fans)
Rear: 120 x 25mm standard fan x 1, 1200 RPM, 17 dBA (included)
Bottom: 120mm x 1 (optional)
HDD Module: 120mm fan x 2 (optional)
External Air Duct: 120mm fan x 1 (optional) |
| Expansion Slots |
7 |
| Power Supply |
Dual Standard ATX PS2 / EPS 12V (optional) |
Manufacturer's Link: Coolermaster ATCS 840 Case
Product Sheet
Manual
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(system components in above picture are for illustration only of the tray mechanism)